gecko/intl/chardet/nsICharsetDetector.h

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2012-05-21 04:12:37 -07:00
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsICharsetDetector_h__
#define nsICharsetDetector_h__
#include "nsISupports.h"
class nsICharsetDetectionObserver;
// {12BB8F14-2389-11d3-B3BF-00805F8A6670}
#define NS_ICHARSETDETECTOR_IID \
{ 0x12bb8f14, 0x2389, 0x11d3, { 0xb3, 0xbf, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
#define NS_CHARSET_DETECTOR_CONTRACTID_BASE "@mozilla.org/intl/charsetdetect;1?type="
#define NS_CHARSET_DETECTOR_CATEGORY "charset-detectors"
class nsICharsetDetector : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICHARSETDETECTOR_IID)
/*
Setup the observer so it know how to notify the answer
*/
NS_IMETHOD Init(nsICharsetDetectionObserver* observer) = 0;
/*
Feed a block of bytes to the detector.
It will call the Notify function of the nsICharsetObserver if it find out
the answer.
aBytesArray - array of bytes
aLen - length of aBytesArray
oDontFeedMe - return true if the detector do not need the following block
false it need more bytes.
This is used to enhance performance
*/
NS_IMETHOD DoIt(const char* aBytesArray, uint32_t aLen, bool* oDontFeedMe) = 0;
/*
It also tell the detector the last chance the make a decision
*/
NS_IMETHOD Done() = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsICharsetDetector,
NS_ICHARSETDETECTOR_IID)
#endif /* nsICharsetDetector_h__ */